The state of not being active and having no energy -

• Torpor (noun)
English Meaning: The state of not being active and having no energy or enthusiasm.
Bangla Meaning: অসাড় অবস্থা।

Synonyms: Apathy (উদাসীনতা; অনীহা), Idleness (আলস্য; আলসেমি), Lethargy (আলস্য; তন্দ্রা), Numbness (অসাড়তা), Spiritlessness (নির্জীবতা)।
Antonyms: Vigour (তেজ; বলবত্তা), Energy (কর্মশক্তি), Animation (সজীবতা; প্রাণচঞ্চলতা), Live (প্রাণবন্ত), Heartiness (আন্তরিকতা)।

Other Forms: Torporific (Adjective)

Example Sentence: 
1.That should keep people busy denouncing my moral torpor today!’
2. He fell into a deep torpor.

Options,
- Solicitous: Showing care and helpful attention to someone
- Vacillate: To be unable to decide something and specially to continue to change opinions.
- Vituperative: A vituperative spoken or written attack is full of angry criticism.

Source: Website Lecture.